And when you paint it, you can remove the old adhesive with denatured alcohol. First remove as much of the foam as possible. A wire brush works well. Then soak a sponge with denatured alcohol and go to work on the adhesive, cleaning the sponge as it gets gummed up with the old adhesive. The fiberglass shell has a nice pebbled finish that looks great painted.

Once you're satisfied all the old adhesive has been removed paint the shell with a good primer. I used KILZ. A small (4") roller worked well for me with brush work in the corners and elsewhere the roller can't go. I followed the KILZ with two coats of a good exterior latex. The label of the paint I used is attached. It's a great match to Bahama Beige interiors. I painted mine nine years ago and I've been very happy with the results.

 

Mine is flat black.

what's nice about it, if you scratch it or do something to it, you just hit it with left over paint and the flaw is gone.